Here are a few tips that may help if your PC is unable to detect your BlackBerry smartphone.

1. Install the desktop manager software – when installing the Desktop Manage software that came with your device be sure to Not have the BlackBerry connected to the computer during this process.

2. Always use the USB ports from the back of the computer; never use a USB hub or a docking station USB port.

3. If you have another UBS cable you can try doing that to make sure it is not the cable causing the issue.

4. If you are using a laptop computer disable the power management settings.
a. For Windows-XP and Vista do the following to disable power management on the USB ports
i. On the computer, right-click My Computer and select Properties.
ii. Click the Hardware tab, and then click Device Manager.
iii. Expand Universal Serial Bus controllers.
iv. Right-click the USB Root Hub and select Properties.
v. Click the Power Management tab, and clear the Allow the computer to turn off this device to save power check box.
vi. Click OK.
vii. Repeat steps i. through vi. for each USB Root Hub listed in BlackBerry Device Manager.

6. The existing USB driver installed is for an earlier model of the BlackBerry smartphone.
a. Manually upgrade the USB driver for the BlackBerry smartphone by completing the following steps:
i. Right-click My Computer and select Properties > Hardware > Device Manager.
ii. Under Universal Serial Bus Controllers, verify that the BlackBerry smartphone is found.
iii. If an exclamation mark is displayed, right-click the BlackBerry smartphone and select Update Driver.
iv. If the Hardware Update Wizard prompts you to use Windows Update, select No not this time and click Next.
v. Choose Install from a list or specific location and click Next.
vi. Choose Don't search. I will choose the driver to install and click Next.
vii. Click Have Disk and then choose Browse.
viii. Browse to C:\Program Files\Common Files\Research In Motion\USB Drivers.
ix. Double-click on RimUsbNT.inf, click OK, and then click Next.

7. If you have another PC try using that PC to see if you able to get the device connected

8. If you do not have another PC then try creating a new user account on the PC and then install the Desktop Manager software on that new profile.

I still have a problem. I am using a virtual PC installed in a MacPro through Parallels. When I connect my BB using the USB cable, the virtual PC recognises it as an external device. It seems to react to my command for synchronisation between the PC contact list and the BB. But when it starts the process of connecting, it does not work.
Can you tell me what would be the problem?
I am using tne Parallel version 3.0 build 5608. Would a later version definitively solve the problem ? I would not like to go through the hassle of upgrading Parallels if I am not sure it would solve the problem.

with BIS paln we cant connect or use the bb as a modem..... for that it required a gprs plan like i have vodafone sim card so i have VMC(vodafone mobile connect)for airtel airtel live.......then u will able to connect the bb wiyh laptop or pc......

hi, ive got a blackberry 9630 bold and im trying to get it to connect to desktop manager , my pc (windows7) recognises it as a storage device but my blackberry desktop software does not pick it up. when i go to device manager in the pc it has a driver called MT6225 with a exclamation mark next to it ... im guessing this means im missing the driver... ive tried to download from blackberry to no avail.. im wanting to update the phones software.. can someone pleeeeeez help me before i go crazy! x im lost
x :(

hi, ive got a blackberry 9630 bold and im trying to get it to connect to desktop manager , my pc (windows7) recognises it as a storage device but my blackberry desktop software does not pick it up. when i go to device manager in the pc it has a driver called MT6225 with a exclamation mark next to it ... im guessing this means im missing the driver... ive tried to download from blackberry to no avail.. im wanting to update the phones software.. can someone pleeeeeez help me before i go crazy! x im lost
x :(

Hey.. I tried the methods... and I connected it to an another PC and it got connected on the deskop manager. However its not working on my PC ...what steps have to be taken in order to solve this problem ?....

I have tried to connect my new storm on 2 machines now. One is a older machine with an earlier version of DM. The other computer is a brand new install. On both machines, the DM software cannot recognize the Storm. The software runs fine until I try to close the application, and then it hangs and I have to kill it via Task Manager.

The cable is brand news out of the box. it charges the device.

On both machines, every time I plug the device in, the computer goes through the "found new hardware" wizard and tries to install new drivers.

I have gone through RIM's page on trouble-shooting. I have manually installed the drivers. The only thing I can see that is obvious is the fact that the BB is not listed under the Universal Serial Bus Controllers in Device Manager.

I would appreciate any help, because I have spent hours trying to fix this on my own now. My phone is useless if I cannot sync it. I traded in an Android Global 2 for this phone b/c I need my contacts and calendar above all. Now I wish I had just kept my 3 year old Curve with all the hassle...

I got a huge problem as in my PC will not even open the Black Berry Desktop interface software. This is what I get.....

602_b043_multilanguage.exe is not a valid Win32 application

The whole Black Berry Apps and so on is a royal pain in the rear end!!! I am so frustrated!
Would be nice if someone here could help solve this problem. I am adding stuff to my Black Berry by email it to myself but it would be nice if I could use the desk top interface.

Everyone who's tried to help on this problem has been great, but I can't seem to get any of the advice to take with my phone. So am giving up. I finally sent the following letter to the RIM brass, though it didn't make it. RIM just sent it back undelivered. Trying to get through to anyone in the company via email is just about impossible, it seems. I don't like being defeated, but this problem threatens to ruin my life.
Apologies for the length...
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To whoever reads this (and I hope that includes Mr. Yach and Mr. Heins),

I updated the OS on my BB Bold 9700 on receipt of a broadcast email from RIM. The update caused me to lose connectivity with the Desktop Manager and I have spent no less than 15 hours trying to chase down a solution. I have read all available help files from RIM and from countless other users who've had the same problem and the same frustrations. I have done uninstalls and reinstalls of the software and the drivers, pulled batteries, rebooted dozens and dozens of times, and keep getting the message from Vista that it cannot recognize the USB drivers you make available.

It appears from the record that these problems with your USB drivers go back all the way to 2007 in one form or another. My particular problem has not only defeated me, but it appears to have also defeated many experts on the user's forum. You've had systems knowledgeable people saying that your programmers have turned out a junk product and don't know how to correct it.

The issue of buggy software aside, the larger issue to me is that you seem to let this problem persist and are doing nothing but relying on your user base to trial-and-error its way to a solution. Except the solution is not there; there are only reasonable guesses to what might work, and none of the guesses do work. I cannot see from any of the email trails any helpful information from your support staff. Indeed, it's not even evident from your web site that you have a support staff at all. There is no contact information, other than an unhelpful form to email to some unspecified staff with a 24 hour turnaround. And there is no phone support. This is not a service. It is a disservice.

I can face the consequences for breaking hardware and software when I do it myself, but I find it highly objectionable to be punished for the damaged goods that a technology company foists off on me. As much as I've liked the BB when it worked, my eroded confidence says it would not be a good idea to stick with your product line any longer.

How could an issue with your cell phone "threaten to ruin your life"?? That's beyond bizarre and seemingly ludicrous. I get the point that you are frustrated with the device operation currently, but "ruining your life"? Please.

Spending "15 hours trying to chase down a solution" doesn't seem a very long time. You are giving up and saying that you are "defeated" after working on it for a such a short time. If that's the case, it must not really be that important after all.

And I'm pretty sure that no one "foisted" anything on you. The device was a choice. Updating the software was a choice.

Have you tried other computers? Have you tried wiping with JL_Cmdr? BBSAK?

And lastly, of course, this site isn't connected with RIM, so posting your rant here isn't likely to reach "RIM brass".

I tried all the above,
install/unistall.
Reboot, new cables.
Nothing worked.

Until I noted that where the usb cable, short end entered the blackberry, that the connection seemed loose.
I took some pliers and gently squeezed the connector end on the usb cable that inserts into the blackberry to creat a more snug fit (so the "female end on the cable was pressed in slightly to make a better attachment with the male end found within the blackberry) and finally resolved the issue.

The device was finally recognized and syncs were successful.

It appeared the problem was that the part within the blackberry somehow did not seem to get a snug fit. Rather than manipulate the blackberry, I found that gently creating a tighter fit on the usb cable at the small end that attaches to the blackberry (not the larger one to the computer) that the problem of not recognizing the device was resolved.
Hope this helps you.
blackberrydoc